# BLEDIM vs U

The clearest difference is review sentiment: U at 100% against BLEDIM's 23%. U also leads on rating (3.7 vs 2.0) and update cadence (every 3 weeks vs every 2 months). BLEDIM's advantage is ratings volume (715 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

U holds the better App Store score, 3.7 against 2.0. That said, the two scores are not equally well evidenced: BLEDIM has 715 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 23% of BLEDIM's written reviews are positive against 100% of U's.

BLEDIM ships an update every 2 months, U every 3 weeks. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | BLEDIM | U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (715 ratings)](https://appshunter.io/ios/app/bledim/id1027450939/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/u-light/id1537363132/reviews)** |
| Number of ratings | **715** | 3 |
| Positive reviews | 23.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 17 MB | 7 MB |
| Requires iOS | 11.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [雄 李](https://appshunter.io/developer/891570181) | [Shenzhen Yamei Yunchuang Intelligence Technology Co.,Ltd.](https://appshunter.io/developer/1462581811) |

## What reviewers say

### BLEDIM

[App page](https://appshunter.io/ios/app/bledim/id1027450939)

Control LED lamps directly from your smartphone. Customize static or dynamic lighting scenes, adjust speed, brightness, and flashing effects. Even shake your phone to generate a random color.

**Highlights:** Control LED lamps via smartphone, DIY static and dynamic scenes, Adjustable speed, brightness, flashing, Random color generation by shaking phone

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Decent connectivity
- 💡 Good light control options
- 🤖 Simple app interface

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔌 App crashes/bugs
- 🌈 Inaccurate color representation
- 🔇 Music playback problems
- 🤔 Unclear on/off status

**Reported bugs**

- Bluetooth connection failures
- Lights getting stuck on
- App crashing on iOS 14 update
- Inconsistent color output

**Requested features**

- More color customization options
- Ability to control multiple devices simultaneously
- CarPlay/Android Auto support
- Better music integration
- Improved Bluetooth range and stability


### U

[App page](https://appshunter.io/ios/app/u-light/id1537363132)

Control magic lights and lamps with this Bluetooth controller. Offers IC point settings, over 200 built-in effects, and music rhythm synchronization. Supports both Chinese and English languages for a user-friendly experience.

**Highlights:** Bluetooth control for lights, Customizable IC points, Over 200 built-in effects, Music rhythm synchronization, Infrared remote control support, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BLEDIM free?

BLEDIM is free to download, with no in-app purchases.

### Is U free?

U is free to download, with no in-app purchases.

### Which has better reviews, BLEDIM or U?

U is rated higher. BLEDIM averages 2.0 out of 5 from 715 ratings, while U averages 3.7 from 3 ratings.

### Do BLEDIM or U have ads?

Neither BLEDIM nor U shows ads.

### Which is updated more often, BLEDIM or U?

BLEDIM ships an update every 2 months, and U every 3 weeks. Most recently, BLEDIM was updated on October 11, 2026 and U on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*